Mushroom growing tray



FIG. 1 is a perspective view of a mushroom growing tray showing my new design;

FIG. 2 is a top plan view thereof, on a reduced scale;

FIG. 3 is a right side elevational view thereof of FIG. 2;

FIG. 4 is a front elevational view of FIG. 2;

FIG. 5 is a left side elevational view of FIG. 2;

FIG. 6 is a rear elevational view of FIG. 2; and,

FIG. 7 is a bottom plan view of FIG. 2. 

The ornamental design for a mushroom growing tray, as shown. 